China Railway Shanhaiguan Bridge Group Co., Ltd.
China
| Total IP | 3 |
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| Total IP Rank # | 502,805 |
| IP Activity Score | 1.1/5.0 3 |
| IP Activity Rank # | 339,187 |
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| Last Patent | 2022 - Butt-welding method for u-shaped... | |||||||||||||||
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| First Patent | 2019 - 1676 mm and 1000 mm dual-gauge m... | |||||||||||||||
Latest Inventions, Goods, Services
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